onsemi Transistor NPN 600 mA 40 V TO-92 3-Pin Small Signal 2N4401BU

onsemi 2N4401BU is a small signal NPN bipolar junction transistor designed for general-purpose switching and amplification applications in electronic circuits. It supports a maximum DC collector current of 600 mA and can withstand a collector-emitter voltage up to 40 V, making it suitable for medium power applications.

The transistor package is a standard 3-pin TO-92 type which allows easy through hole mounting on printed circuit boards for prototyping and production. It features a maximum power dissipation rating of 625 mW which allows it to operate efficiently within thermal limits.

This transistor has a maximum transition frequency of 250 MHz, enabling high-speed switching suitable for RF and audio amplifier circuits. Its minimum DC current gain (hFE) of 20 ensures consistent amplification performance across applications.

Additionally, onsemi 2N4401BU can operate in extended temperature ranges from -55°C to 150°C, making it reliable in harsh industrial and commercial environments. The transistor's compact dimensions (height 21.77mm, length 5.2mm, width 4.19mm) facilitate PCB space savings and integration in dense electronic assemblies.

Designed for use in switching and amplification circuits. Supports maximum collector current of 600 mA and voltage of 40 V. Features TO-92 3-pin package for easy mounting. High transition frequency of 250 MHz for fast switching.

Power dissipation rating of 625 mW for reliable operation. Wide temperature tolerance from -55°C to 150°C. Minimum DC current gain of 20 for stable performance. Compact and durable design for industrial applications.

This transistor is ideal for industrial, electronic manufacturing, and laboratory use where dependable bipolar transistors are essential. It is a popular choice in electronic components inventories for prototyping and production due to its versatile electrical characteristics.

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